Method and apparatus of rope polishing circular compression dies



Nov. 8, 1966 c. E. NIXON 3,233,392

METHOD AND APPARATUS OF ROPE POLISHING CIRCULAR COMPRESSION DIES N FiledSept. 16, 1 964 w W 1W F F 1 i Z6 LLL LLLLL INVENTOR. 644/255 f/V/XQA/MZQM.

United States Patent 3 283,392 METHOD AND APPARATUS F ROPE POLISH- INGCIRCULAR COMPRESSION DIES Charles E. Nixon, 110 W. Howard St., Waveland,Ind. Filed Sept. 16, 1964, Ser. No. 396,852 4 Claims. (CI. 29-90) Thepresent invention relates to an improved method and apparatus of ropepolishing compression dies useful in various industries for polishingcompression dies, and more particularly relates to the endless ropeconnection means for arranging the rope in endless fashion as animprovement over other endless rope connecting means.

In the prior art, it has been known to provide rope polishing ropeswhich are connected at their ends by a two-foot cable, which may oftentimes be longer such as 26 inches, or the like. It is known that thesecables are used as the connecting means between the ends of the rope asit is formed in an endless fashion so that the twofoot cable lengthwould therefore serve as a guide to the incoming rope end entering intothe top side of the die which is to be polished. It has been found thatthere are numerous times when such an arrangement of the prior artadequately provides a polished surface for the compression die, but thecables used in forming the rope into an endless construction result inthe total destruction of the rope ends, particularly the forward orfront end of the cable, as it commences to pas through the hole to bepolished in the steel die.

Therefore, an object of the present invention is to provide a newconnecting or coupling means between the ends of the polishing ropeafter it has been threaded or passed through the apertures or openingsto be polished, and to connect the ends of the rape by steel hookswithout any intervening cable being disposed for such connection.

A further object of the present invention is to provide means forcoupling the ends of a polishing rope so that the overall length betweenthe ends of the polishing and working area of each of the ropes is notmore than two inches, so that one rope end is allowed to polish throughthe die and to act as a guide for the trailing end of the rope as itenters the top side of the hole.

Other objects and advantages as well as a complete understanding of theinvention may be had from the following description of a particularembodiment of the invention. In the description, reference is made tothe accompanying drawings of which:

FIGURE 1 is a 3-dimensional perspective view shown in partially brokenaway fashion for illustrating the endless poIish-rope of the invention;

FIGURE 2 shows connecting means for connecting ends of the polishingrope in the manner of the preferred embodiment of the invention; and

FIGURE 3 shows an arrangement by which a plurality of openings in acircular compression die is being polished in accordance wit-h endlessropes being used and connected in accordance with the present invention.

Referring now to the drawings, there is shown a panel that issubstantially vertically positioned, although this is not a functionalrequirement, so that there are mounted thereon at least a pair ofpulleys 12, 14, and an additional pulley 16 for passing a cord 20 overthe pulleys. One of the pulleys is adapted to drive the cord 20 aboutthe endless path so that it is continuously passed around the circuitprovided by the cord. The endless rope or cord 20 passes through both atop and bottom of a compression die 22 having holes 24, 26 asparticularly shown in FIGURE 3 and generally shown in FIG- URE 1. Theends of the endless cord are such that they are substantially closelyspaced apart by reason of the "ice ends of the rope or cord 30, 32, asshown in FIGURE 2, are such that there is a coupling or steel sleeve 34,36

located thereon for attaching to the ends thereof a book 38, 38 on theends of each of the steel sleeves 34, 36. The hooks are made of steelwire, and hold each of the ends together, as shown in FIGURE 2. Theoverall length of the steel sleeves 34, 36, together with theirinterconnecting hooks 38, 38, are such that the entire nonpolishinglength thereof is substantially less than two inches and in most casesis no more than a maximum length of approximately two inches. Thisprovides for allowing one end of the outgoing rope or cord 20 that ispolishing through the die 22 to act as a guide to the trailing end ofthe cord as it enters the top side of the hole of the die. as shown inhole 26 in FIGURE 1.

By reason of the substantially shortened connection means 30-38, thereis provided a maximum amount of cord length for polishing the hole ofthe die 22, and there is also provided means by which the die isaccurately polished so that any whiplash or stray connecting means ofelongated character would not provide any vibratory and undamped motionas it passes through the die holes for scarring or otherwise damagingthe polished holes that have been completed by the previous passage ofthe rope or cord 20 therethrough.

Thus it is apparent that the invention is accomplished by thesubstantially shortened connection length that is provided in connectingthe ends of the cord together, as shown in FIGURE 2. In FIGURE 3, thereis shown that a plurality of cord ends may be connected together withthe adjacent ends of the respective cords so that they are not insubstantial coincidence as they pass through in time in the openings orholes 24, 26 of the die 22. The invention thus is shown to provide animproved arrangement and method of operation of rope polishing ofcompression dies "as used in various industries. The invention is animprovement over the use of substantially long cable connections betweenends of cords, which connections have been at least in some cases twofeet to 26 inches in length, and by the practice of the presentinvention substantially improved polishing and production of polishedcompression dies has been achieved. Also the invention provides apolished die as well as a polishing cord 20 in which the cord is notdamaged as it is continuously passed through the holes of the die. Theabsence of total destruction of the ends of the cord is a significantimprovement over the polishing as practiced in the prior art.

Additional embodiments of the invention in this specification will occurto others and therefore it is intended that the scope of the inventionbe limited only by the "appended claims and not by the embodimentdescribed hereinabove. Accordingly, reference should be made to thefollowing claims in determining the full scope of the invention.

What is claimed is:

1. Apparatus for polishing at least one of a plurality of closely spacedbore holes comprising a plurality of looped cords adapted to passthrough said holes, a pair of spaced pulleys forming a common supportfor the opposed portions of said looped cords, means for hooking theends of the cords to each other to provide a short coupling lengthbetween the ends thereof, and means for driving the pulleys to pass saidcords through said holes.

2. Apparatus for polishing at least one of a plurality of closely spacedbore holes comprising :a plurality of looped cords adapted to passthrough and be spaced by said holes, a pair of spaced pulleys forming acommon support for the opposed portions of said looped cords, said cordsbeing slidable axially on said pulleys to vary the spacing therebetween,means for driving one of said pulleys to simultaneously pass said cordsthrough said i holes, and connecting means on each end of said cordsforming a substantially short connection between mutual f and adjacentends of said cords wherein said connection l means is substantiallyshort in length.

3. Apparatus for polishing a plurality of closely spaced on the otherend of said cords mutually therewith to form a substantially shortconnection that is readily disconnectable.

4. Apparatus for polishing a closely spaced bore hole comprising alooped cord adapted to pass through said hole, at least a pair of spacedpulleys forming a common support for the opposed portions of said loopedcord,

said cord being slidable axially on said pulleys and hav- I ing hookmeans on the ends of said cord for forming a substantially shortconnection between the ends thereof to provide the maximum amount ofcontact between the cord and the hole, and whereas the connection meansis.

substantially short so that essentially no whiplash is provided in theconnection means in passing through the hole at high speed and maximumcontact of the cord is provided to said 'hole in polishing thereof.

No references cited.

RICHARD H. EANES, JR., Primary Examiner.

1. APPARATUS FOR POLISHING AT LEAST ONE OF A PLURALITY OF CLOSELY SPACEDBORE HOLES COMPRISING A PLURALITY OF LOOPED CORDS ADAPTED TO PASSTHROUGH SAID HOLES, A PAIR OF SPACED PULLEYS FORMING A COMMON SUPPORTFOR THE OPPOSED PORTIONS OF SAID LOOPED CORDS, MEANS FOR HOOKING THEENDS OF THE CORDS TO EACH OTHER TO PROVIDE A SHORT COUPLING LENGTHBETWEEN THE ENDS THEREOF, AND MEANS FOR DRIVING THE PULLEYS TO PASS SAIDCORDS THROUGH SAID HOLES.